Quite surprised but I think my hen is a rooster, could someone help?

I have two chickens that are about 2 and a half months old now and I started hearing crowing from the every morning, but this morning I took a look and noticed that indeed BOTH are crowing, I didn't think both were roosters. Please let me know if anyone could suggest something. It could also be, as I've read elsewhere, that at times a dominating hen will crow as well, but it sounds that she crows better than the rooster! I won't tell him I said that...lol

This white one is the one I'm basically sure is a rooster, not the one I'm doubting about.

This brown one on the other hand was a hen, I thought...maybe I'm wrong? It crows nicely...here's another one-

I'm not experienced with Polish, hopefully Yorkshire Coop will be along - she raises them.

Your black & white bird has quite a cross beak, if you planned on using for breeding I would advice against it. Are you sure both are crowing?

Dominant hens do not take over crowing as often as people think. IF there isn't a rooster in the flock - rarely a hen may take over to keep order in the ranks. You have a roo, so there would be no reason for another to take over, especially at such a young age.